99: How Fat Hormones Affect Appetite, Inflammation, and Heart Health with Dr. Ben Bikman

📢 Ask Dr. Bikman’s Digital Mind: https://benbikman.com/ben-bikmans-dig... In this Metabolic Classroom lecture, Dr. Ben Bikman explores the critical yet often overlooked role of fat tissue as an endocrine organ, not just a passive energy storage site. Fat secretes dozens of bioactive hormones, collectively called adipokines, that influence everything from appetite and insulin sensitivity to inflammation and cardiovascular risk. He focuses primarily on leptin, adiponectin, and PAI-1 (plasminogen activator inhibitor-1), detailing how each one affects whole-body metabolism and health. Leptin, produced by fat cells, signals the brain about the body’s energy stores, affecting long-term appetite and fertility more than immediate satiety. Paradoxically, individuals with obesity often have high leptin levels but suffer from leptin resistance, leading to persistent hunger and metabolic dysfunction. In contrast, adiponectin levels decrease as fat mass increases. Adiponectin plays a powerful protective role by enhancing insulin sensitivity, reducing inflammation, and promoting fat metabolism, making it a key marker of good metabolic health. Ben also highlights PAI-1, a lesser-known adipokine secreted mainly by visceral fat, which inhibits the breakdown of blood clots, thereby raising cardiovascular disease risk. He further discusses other adipokines such as resistin, TNF-alpha, and angiotensinogen, which link excess fat mass to insulin resistance, inflammation, and hypertension. Finally, he contrasts subcutaneous fat (more benign) with visceral fat (more harmful) and explains how brown fat offers unique metabolic benefits by promoting thermogenesis and thyroid hormone activation. The location and health of fat tissue matter just as much as its quantity. Show Notes/References: For complete show notes and references, we invite you to become a Ben Bikman Insider subscriber. As a subscriber, you’ll enjoy real-time, livestream Metabolic Classroom access which includes live Q&A after the lecture with Ben, ad-free podcast episodes, show notes and references, Ben’s Research Reviews Podcast, and a searchable archive that includes all Metabolic Classroom episodes and Research Reviews. Learn more: https://www.benbikman.com Translation Notes: You can click the gear icon at the bottom of this video to auto-translate captions. For example, to translate into Polish, select Subtitles, choose Auto-Translate, then first choose English, then choose Auto-Translate again, then choose Polish.) In addition, our channel has first access to YouTube’s new, innovative “auto-dubbing” feature. The process currently supports translations from English into French, German, Hindi, Indonesian, Italian, Japanese, Portuguese, and Spanish. Click on the gear icon, then choose “Audio track” to access. #FatHormones #Leptin #Adiponectin #PAI1 #MetabolicHealth #FatLoss #InsulinResistance #Endocrinology #ObesityScience #SubcutaneousFat #VisceralFat #BrownFat #CardiovascularHealth #Inflammation #GlucoseControl #Ceramides #HormoneHealth #FatStorage #DrBenBikman #KetoScience Timestamps (approximate): 01:25 – Fat as an Endocrine Organ: Adipokines 02:45 – Different Fat Depots: Subcutaneous, Visceral, Brown 03:47 – Leptin: The Long-Term Satiety Hormone 05:44 – Leptin Resistance in Obesity 06:45 – Leptin, Weight Loss, and Hunger 07:48 – Sex Differences in Leptin and Fertility Connection 11:03 – Adiponectin: The Forgotten Metabolic Hero 12:22 – Adiponectin’s Roles: Insulin Sensitivity, Anti-Inflammation, Fat Metabolism 13:40 – Visceral Fat and Adiponectin 14:48 – PAI-1: Fat’s Link to Blood Clot Risk 15:56 – How PAI-1 Increases Cardiovascular Disease Risk 17:19 – Fat Tissue and Heart Health Risk 18:22 – Other Adipokines: Resistin, TNF-alpha, Angiotensinogen 22:50 – Brown Fat and Thermogenesis 24:14 – Brown Fat and Thyroid Hormone Activation 25:11 – Fat Depot Differences and Metabolic Outcomes 26:19 – Conclusion: Fat Quality Matters More Than Quantity 27:24 – Defending Fat Tissue: The Forgotten Endocrine Organ 📢 Learn more about becoming an Insider on Ben’s website: https://www.benbikman.com Ben’s favorite yerba maté and fiber supplement: https://ufeelgreat.com/usa/en/c/1BA884 Ben’s favorite meal-replacement shake: https://gethlth.com (discount: BEN10) Ben’s favorite electrolytes (and more): https://redmond.life (discount: BEN15) Ben’s favorite allulose source: https://rxsugar.com (discount: BEN20) Ben’s favorite health check-up for women: https://choosejoi.co/drben15 (discount: DRBEN15) Ben’s favorite health check-up for men: https://blokes.co/drben15 (discount: DRBEN15) Ben’s favorite exogenous ketone: https://ketone.com/BEN30 (discount: BEN30) Other products Ben likes: https://www.amazon.com/shop/benbikmanphd